Chemical substances that interrupt pregnancy after implantation.

A plant species of the genus PINUS that contains isocupressic acid.

Non-steroidal chemical compounds with abortifacient activity.

Steroidal compounds with abortifacient activity.

Plant-derived ribosome-inactivating protein (RIP) purified from the Chinese medicinal herb tian-hua-fen which is obtained from the root tubers of Trichosanthes kirilowii. It has been used as an abortifacient and in the treatment of trophoblastic tumors. GLQ223 (Compound Q), a highly purified form of trichosanthin, has been proposed as antiviral treatment for AIDS.

Premature expulsion of the FETUS in animals.

Intentional removal of a fetus from the uterus by any of a number of techniques. (POPLINE, 1978)

The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.

A synthetic analog of natural prostaglandin E1. It produces a dose-related inhibition of gastric acid and pepsin secretion, and enhances mucosal resistance to injury. It is an effective anti-ulcer agent and also has oxytocic properties.

Analogs or derivatives of prostaglandins E that do not occur naturally in the body. They do not include the product of the chemical synthesis of hormonal PGE.

Contraceptive devices placed high in the uterine fundus.

Intrauterine contraceptive devices that depend on the release of metallic copper.

Intrauterine devices that release contraceptive agents.

Spontaneous loss of INTRAUTERINE DEVICES from the UTERUS.

The shifting in position or location of an INTRAUTERINE DEVICE from its original placement.

A hole or break through the wall of the UTERUS, usually made by the placement of an instrument or INTRAUTERINE DEVICES.

Chemical substances or agents with contraceptive activity in females. Use for female contraceptive agents in general or for which there is no specific heading.